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"'0. 624,8". Patented May 9, I899. c. w. a w. F. HUNT & c. 0. KING.

HOISTING APPARATUS.

(Application filed Jan. 16, was. (No Model.) 2 Sheets-Sheet l.

as/Alta 6.

No. 624.8". Patelited May 9 I899. C.'W. 8:. W. F. HUNT & C. C. KING.

HUISTING APPARATUS. (Application filed Jan. 16, 1899.)

2 Sheets$heet 2.

(No Model.)

//IIIIIIIIII/IIII/IIIIIII/IIII/Il/IIIIIIl/l/ THE N'oams PETERS co, Wom-uwovv \VASNINGTON. D. c

lJNiTED STATES PATENT OFFICE.

CHARLES W. HUNT, WILLIAM F. HUNT, AND CHARLES 0. KING, OF NEW YORK, N. Y., ASSIGNORS To THE 0. W. HUNT COMPANY, OF SAME PLACE.

HOISTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 624,81 1, dated May 9, 1899. Application filed January 16, 1899. Serial No. 702,209. (No model.)

To aZZ whom it may concern.-

Be it known that we, CHARLES W. HUNT, WILLIAM F. HUNT, and CHARLES 0. KING,

citizens of the United States, residing at New York, (West New Brighton,) in the county of Richmond and State of New York, have inwith a friction device for driving one of the drums and an intermediate wheel and pinion engaging bevel gears upon the respective drums. We have introduced in the drawings an illustration corresponding to the same for the purpose of representing two hoistingdrums that can be rotated in either one direction or the other.

In our present improvement we combine with two hoistin -drums a third drum and a rope or chain having a pendent loop passing over sheaves or pulleys upon a truck and having within the pendent loop a sheave or wheel that is connected with the article that is raised or lowered. By the combined action of these drums and chains or ropes the article or weight to be raised or lowered can be controlled with the greatest ease and reliability. When the weight is being raised, the third rope or chain is taken up by the third drum, and the weight may also be partially raised by this third rope, and after the weight has been raised the truck can be run along upon a boom or elevated track in either one direction or the other, the sheave at the weight running upon the third rope or chain and in the loop thereof. Hence the weight can be moved to any desired position, and risk of the weight dropping or lowering as the same is transferred from one position to another is effectually avoided, and when this improvement is used with a twopart bucket the contents can be discharged by lowering upon the hoisting-rope, the loop of the third rope acting to hold the frame as the segmental bucket opens and delivers the material therefrom.

In the drawings, Figure 1 is a general diagrammatic elevation illustrating the present improvement. Fig. 2 is a vertical section of the drums, and Fig.3 is a diagrammatic elevation illustrating a modification 'in the man'- ner of applying the third rope.

The elevated track A may be rigid or'it may be a wire rope or other structure or it may be a boom that is either horizontal or more or less inclined, and upon this the truck Bis supported, the same having wheels to run upon the track.

\Ve have represented a bucket O with the frame 2 and segmental scoops 3 and the drum 4, that acts in connection with a chain-6 in opening or closing the scoop, all as well known. The rope or chain 6 passes to the drum D, the rope or chain 7 passes to the drum E, and the rope or chain 8 passes to the drum F. -Where'the rope or chain 8 is double and passes around a stationary sheave or pulley 11 at the distant end of the boom or track, it will pass over the pulleys 9 and 10 and the ends of the rope or chain will be connected to the drum F; but where the rope or chain 8 is single it may be connected at theend 25 upon the boom or track, and the other end, after passing over a pulley, be connected to the drum F, as illustrated in Fig. 3. In this case, however, the drum F requires to be larger or driven more rapidly, because the chain or rope is taken up faster by winding upon the drum the twoparts simultaneously, as shown in Fig. 1, than when it is wound on single, as shown in Fig. 3, and there are double sheaves at 26 and 27 on the truck E for the respective ropes or chains, and the rope 8 hangsbelow these sheaves as a loop in which is the sheave 12, connected with the weight.

The drums D E F are to be rotated by suit able power. We have represented the wheel H between the drums D and E and supporting the bevel gears or pinions 20, which engage gears at the adjacent ends of the drums D and E, so that the two drums are always geared together and one will be rotated in the opposite direction to the otherif the wheel H is held stationary, While the power, acts to rotate the other drum, and a frictional device, illustrated by the strap 21, is applied to this wheel H, and a frictional device is applied for detaining or holding the drum D, illustrated by the friction-strap 19, and a frictional device is applied forholding the drum F, illustrated by the strap 23, and the drums D and F are to be rotated by suitable power acting through frictional connections, and we have shown the friction-wheel with a conical surface at 18 upon the shaft G as the means for driving the drum D and the frictional wheel 22 with an inclined or conical surface, also upon the shaft, G forgiving motion to the drum Rand we have shown a gear-wheel 16 upon the drum E forgiving motion to the same. The devices, however, for driving these respective drums may be of any desired character.

WVe find it convenient to attach the drum E to the shaft G and also the friction devices 18 and 22 and to apply the levers I and K for bringing the frictional devices in to action for causing the shaft G to rotate the drums D and F; but when these friction devices are slackened the drums D and F can turn under the tension of the respective chains or ropes 6 and 8 produced by the load.

As a means for driving the gear 16 and drum E we haverepresented the pinion 17 upon a shaft M, Fig. 1, that may be actuated by a suitable engine or other power. As a means for acting upon the friction brakes or straps'19 21 23 we have represented levers 28, 29, and 30.

It will now be understood that in the form represented in Fig. 1 the rope or chain 7 serves to open the bucket and the rope or chain 6 to close and to hoist the same, and when both of the drums D and E are acted upon simultaneously the ropes or chains 6 and 7 will draw the bucket up vertically and the rope or chain 8 is to be wound upon the drum F, so as to preventlooseness, and if the rope 6 is drawn upon more rapidly than the rope 7 the bucket will be raised diagonally, and after being raised to the desired point the drum F can remain stationary and the weight or bucket can be moved outwardly or inwardly to any desired place, the loop of the rope 8 passing below the sheave 12 remaining substantially quiescent while the said sheave overruns the loop to any desired place.v

Where a tripping-bucket is made use of, the rope 6 can be employed for hoisting the same and the rope 7 for causing the bucket to be tripped or for allowing the bucket to be hoisted diagonally in one direction or the other, and the same operation can be performed when any other article than the bucket is being hoisted, and where a bucket is made use of it can be unlatched'or tripped at any desired point in raising the same by the trip coming in contact with the truck or track or with any other disconnecting device.

vWhere therope 8 is double and passes around the stationary pulley 11 at the distant end of the track, the drum F can be of the same size as the drums D E and revolve with them upon the shaft G and the loop of the rope S that passes below the sheave 12 will be taken up, so as not tohangloosely; but where the rope or chain Sis single, as shown in Fig. 3, with one end attached at 25 in a position corresponding generally to the sheave 11, Fig. 1, then the drum F should be twice the size of the drum E if receiving motion directly from the shaft G, or said drum can be rotated by an independent connection to the motive power.

It will be apparent that if the drum .E is

revolved in either one direction or the other and the wheel H held by the friction device the drum D will revolve in the opposite direction to the drum E, and one rope will be paid out as the other is wound up, and in so doing the weight will be moved in one direction or.

theother along with the truck, and when the drum D is connected to the motive power through the friction device 18 said drum may receive a direct motion from the power in either one direction or the other, and the same is true in regard to the drum F, and it may be connected with the shaft G by the friction device 22, so as to revolve with the shaft, or it may be loosened so that the drum revolves as the rope is drawn off the same. By this construction we are enabled to move the weight substantially in any direction and to any desired point and discharge the same automatically, and the rope'or chain 8 allows the ropes or chains 6 or 7 to be drawn on or paid out as may be desired in moving the weight without either raising or lowering that weight in consequence of the pulley 12 overrunning the loop of the rope or chain 8.

It is usually necessary to have the sheaves 9, 10, 13, and 14 to cause the ropes to lead to the respective drums; butsome or all of these may be dispensed with, according to the location of the drums in respect to the other parts.

We claim as our invention 1. The combination with two drums and mechanism for moving the same, ropes passing from the drums, an elevated track and truck thereon and sheaves on said truck over which the said ropes pass to the weight to be raised, of a third rope, sheaves upon the truck over which the third rope hangs as a loop and a sheave within said loop and connected to the article to be raised, anda drum by which this third rope is drawn up or allowed to pass off, and mechanism for actuating the respective drums, substantially as set forth.

2. The combination with two drums, their ropes and actuating mechanism for the drums, of an elevated track, a truck upon the track and sheaves on said truck over which the said ropes pass from opposite directions, a sheave near the end of the track around which one of the ropes passes, a third rope passing over sheaves upon the truck and hanging in the form of a loop, a sheave within said loop and connected to the weight to be raised, a sheave at or near the end of the track around which the third rope passes, a drum to which the two ends of the third rope are connected,

and mechanism for actuating said drum, substantially as set forth.

3. The combination with two drums, their ropes and a friction device for one of the drums and a direct connection to the power for the other drum and by which they are actuated, of an elevated track, a truck upon the track and sheaves thereon over which the ropes pass from opposite directions, asheave near the end of the track around which one of the ropes passes, a third rope passing over sheaves upon the truck and hanging in the form of a loop, a sheave within said loop and connected to theweight to be raised and a sheave at or near the end of the track around which the third rope passes, a drum to which the two ends of the third rope are connected, and mechanism for actuating said drum, substantially as set forth.

4:. The combination with two drums, their ropes and actuating mechanism for the drums, of an elevated track a truck upon the track and sheaves on said truck over which the ropes pass from opposite directions, a sheave near the end of the track around which one of the ropes passes, a third rope passing over sheaves upon the truck and hanging in the form of a loop, a sheave within said loop and connected to the weight to be raised, a sheave at or near the end of the track around which the third rope passes, a drum to which the two ends of the third rope are connected, and a friction device for actuating the drum, substantially as set forth.

5. The combination with a two-part segmental bucket and the two ropes for the same, of a truck and sheaves thereon over which the ropes pass, an elevated track for the truck, a sheave near the distant end of the track around which one of the hoisting-ropes passes, and drums to which the respective ropes are connected and mechanism for actuating the drums and winding up or giving out the ropes, a third rope and pulleys upon the truck over which the rope passes and hangs as a loop, a sheave within said loop and connected with the bucket,- and a drumfor acting upon the third rope, substantially as set forth.

Signed by us this 10th day of January, 1899.

CHAS. w. HUNT, WM. F. HUNT. o. 0. KING, 

